Perhaps you should try some spelling variations:
sharing oil » sharing our, sharing big, sharing his
hua cost » a cost, eu cost
run cost » iran cost, can cost, run cash
oil ying » oil using, oil line
ying shu » ying zhu, cong shu, ying hua
yan yi » yang yi, tan yi, yan zi
wang » wing, wan, lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yi ((hua cost) or (run cost)) sharing oil ying shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yi ((hua cost) OR (run cost)) sharing oil ying shu ;.
• Adding a wildcard symbol may retrieve word variants: wang yan yi ((hua cost) or (run cost)) sharing oil ying shu ;*.